CN115264148B

CN115264148B - Water supply pipeline exhaust valve

Info

Publication number: CN115264148B
Application number: CN202210888463.0A
Authority: CN
Inventors: 王世新; 武秀亭; 崔晓明; 孟迪; 王存庆
Original assignee: Jinan Maike Valve Technology Co ltd
Current assignee: Jinan Maike Valve Technology Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-03-24
Anticipated expiration: 2042-07-27
Also published as: CN115264148A

Abstract

The utility model provides a water supply line discharge valve, includes the main valve body and seal receptacle, just the seal receptacle includes fixed part and vortex portion, fixed part circumference is fixed with the main valve body, the vortex position is in one side that the fixed part is close to the main valve body cavity, there is the clearance between vortex portion circumference and the main valve body, and this annular gap constitutes the second gas pocket, the seal receptacle center still is provided with first gas pocket along its axial, first gas pocket and second gas pocket intercommunication, first gas pocket department is provided with the guide holder, be provided with the first sealing member that can go up and down on the guide holder, be used for sealing first gas pocket, the one end that the guide holder was kept away from to first sealing member is connected with the floater, floater circumference is provided with the second sealing member, is used for sealing the second gas pocket is distinguished from current integrated into one piece design, and it is more convenient to dismantle the maintenance, has designed two kinds of closure states, one-level sensitive seal state and second grade seal state promptly, and liquid level perception in the discharge valve cavity is more.

Description

Water supply pipeline exhaust valve

Technical Field

The invention relates to the technical field of hydraulic engineering equipment, in particular to an exhaust valve of a water supply pipeline.

Background

The exhaust valve is a common device in the water pipeline, as shown in a combined exhaust valve with a buffer device with the publication number of CN106195414B, the water hammer phenomenon can be effectively prevented, and in the water pipeline, if gas exists, the gas can be rapidly discharged, and by arranging a throttling mechanism, the phenomenon that water flow is sprayed out of the exhaust valve is reduced, but only one gas outlet and a sealing structure are adopted, so that when the exhaust valve is used, no intermediate state exists, only the gas outlet is closed and opened, the liquid level sensing in the exhaust valve is not sensitive, certain defects exist, and the exhaust valve structure disclosed in the prior art is not easy to maintain and overhaul due to the integral forming of the structure, and the whole structure still has an improved space.

Disclosure of Invention

In order to solve the problems that the exhaust valve is insensitive to reaction and is not easy to overhaul and maintain, the invention provides the exhaust valve for the water supply pipeline.

The technical scheme of the invention is as follows:

the utility model provides a water supply pipe discharge valve, includes the main valve body and seal receptacle, the main valve body includes choke and circular shape valve port, the seal receptacle sets up valve port department is fixed with the main valve body, the seal receptacle includes fixed part and vortex portion, fixed part circumference is fixed with the main valve body, the vortex portion is located the fixed part and is close to one side of main valve body cavity, there is the clearance between vortex portion circumference and the main valve body, and this annular gap constitutes the second gas pocket, the seal receptacle center still is provided with first gas pocket along its axial, the vortex portion is close to the position circumference of fixed part and is provided with a plurality of intercommunicating pores, first gas pocket and second gas pocket of intercommunicating pore intercommunication, first gas pocket department is provided with the guide holder, be provided with the first sealing member that can go up and down on the guide holder, first sealing member is used for sealing up and down first gas pocket, the one end that the guide holder was kept away from to first sealing member is connected with the floater, floater circumference is provided with the second sealing member, the second sealing member is used for sealing up the second gas pocket, and discharge valve includes three kinds of states at least, respectively:

in a normal state, the first sealing element is far away from the first air hole, and the second sealing element is far away from the second air hole;

in a primary sealing state, the floating ball is not completely immersed in liquid, the first sealing element seals the first air hole, and the second sealing element is far away from the second air hole;

and in a secondary sealing state, the floating ball is immersed in the liquid, the first sealing element seals the first air hole, and the second sealing element seals the second air hole. Different from the existing design, the device has an intermediate state, namely a primary sealing state, and is quicker when switching between a second sealing state and a conventional state.

In order to slow down the flow rate of liquid reaching the second air hole, a plurality of return pipes are circumferentially arranged on the main valve body, a first opening and a second opening are formed in the contact position of the return pipe and the main valve body, the return pipe is a bent pipe, the plane of the top point of the bent pipe of the return pipe is higher than the plane of the second opening, and the plane of the second opening is higher than the plane of the first opening.

For above-mentioned structure, specific design does, the intercommunicating pore place plane is higher than return bend summit place plane, second opening place plane is higher than vortex portion bottom surface place plane, vortex portion bottom surface place plane is higher than first opening place plane to can obtain rivers impact effect, to a certain extent, slow down rivers velocity of flow.

Preferably, the spoiler portion is provided with an arc-shaped groove at a position opposite to the second opening. So as to prevent the water flow of the second opening from impacting the first sealing element to influence the sealing effect of the first sealing element.

In order to reduce the back at the liquid level, quick switching to exhaust state, the floater is provided with heavy chamber, be provided with reset spring in the heavy chamber, reset spring one end is connected fixedly with the floater, and the other end is fixed with first sealing member, first sealing member includes the sealing plug, the sealing plug is run through by the guide bar, the guide bar passes the guide holder just can locate to remove at the guide holder, the guide bar is kept away from the one end of guide holder and is fixed with reset spring, and when the second sealing member is sealed during the second gas pocket, reset spring is in compression state.

The specific structural design of the second sealing element is that the second sealing element comprises a cylindrical sleeve, the cylindrical sleeve is sleeved on the outer side of the floating ball and fixed with the floating ball, and an annular sealing strip is arranged at one end, away from the floating ball, of the cylindrical sleeve and used for sealing the second air hole.

As a necessary choice for realizing the structure disassembly function, the sinking cavity is positioned at the central line position of the first air hole, and the maximum diameter length of the cylindrical sleeve is smaller than the minimum diameter length of the valve port.

In order to realize the turbulent flow effect, the cross-sectional area of the cavity of the main valve body on the plane where the first opening is located is larger than that of the cavity of the main valve body on the plane where the second opening is located.

Preferably, the cylindrical sleeve is circumferentially provided with a plurality of vertical kidney-shaped holes.

In order to prevent water flow from entering the exhaust valve, one end, away from the main valve body, of the fixing portion is provided with a cover plate, the cover plate is larger than the first air hole, and the upper surface of the fixing portion is an inclined surface.

The invention has the beneficial effects that: the invention relates to a water supply pipeline exhaust valve, which can be divided into two parts, namely a main valve body and a sealing seat, is different from the existing integrated design, is more convenient to disassemble, maintain and repair, is different from the original mode of opening, closing and exhausting of a single opening, and is designed into two closed states, namely a primary sealing state and a secondary sealing state, so that the liquid level in a cavity of the exhaust valve is sensed more sensitively, the reaction speed of the exhaust valve can be effectively increased through the intervention of an intermediate state, the phenomenon of liquid ejection can be effectively avoided, and the opening time of the exhaust valve can be shortened.

Drawings

The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.

In the drawings:

FIG. 1 is a schematic view of a conventional packing structure according to the present invention;

FIG. 2 is a structural schematic view of a primary seal state of the present invention;

FIG. 3 is a structural schematic diagram of a two-stage sealing state of the present invention;

FIG. 4 is a schematic view of a main valve body according to the present invention;

FIG. 5 is a schematic view of the seal holder and the related structure of the invention

The components represented by the reference numerals in the figures are:

1. a main valve body; 11. a choke; 12. a cavity; 13. a valve port; 14. a return pipe; 141. a first opening; 142. the top of the bent pipe; 143. a second opening; 2. a floating ball; 21. sinking the cavity; 22. a return spring; 3. a second seal member; 31. a cylindrical sleeve; 32. an annular sealing strip; 4. a first seal member; 41. a guide bar; 42. a sealing plug; 5. a sealing seat; 51. a first air hole; 52. a spoiler portion; 53. a guide seat; 54. a communicating hole; 55. a fixed part; 56. a cover plate; 6. a second air hole.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It should be noted that these embodiments are provided so that this disclosure can be more completely understood and fully conveyed to those skilled in the art, and the present disclosure may be implemented in various forms without being limited to the embodiments set forth herein.

Examples

The water supply pipe exhaust valve shown in fig. 1-5 comprises a main valve body 1 and a seal seat 5, wherein the main valve body 1 comprises a choke 11 and a circular valve port 13, as shown in fig. 4, the design of the choke 11 is the same as the existing structure, and therefore, the description is omitted, and the design of the valve port 13 is used for installing the seal seat 5.

Further, as shown in fig. 1, the sealing seat 5 is disposed at the valve port 13 and fixed to the main valve body 1, the sealing seat 5 includes a fixing portion 55 and a flow disturbing portion 52, the fixing portion 55 is circumferentially fixed to the main valve body 1 to connect the two structures, the fixing manner may be a bolt fixing manner or other similar fixing manner, the flow disturbing portion 52 is located on one side of the fixing portion 55 close to the cavity 12 of the main valve body 1, a gap exists between the flow disturbing portion 52 and the main valve body 1, and the gap is a second air hole 6.

Furthermore, as shown in fig. 1, a first air hole 51 is further formed in the center of the sealing seat 5, a plurality of communication holes 54 are circumferentially formed at positions of the spoiler 52 close to the fixing portion 55, and the communication holes 54 communicate the first air hole 51 with the second air hole 6, that is, the air flow can flow out from the first air hole 51 after passing through the second air hole 6.

And the first air hole 51 and the second air hole 6 are not opened and closed at the same time, that is, the effect that the air flow can continuously pass through the second air hole 6 after the first air hole 51 is closed can be obtained, therefore, when the exhaust valve is sealed, two stages are needed, that is, the first air hole 51 is closed and the first air hole 51 and the second air hole 6 are closed, so that the intermediate effect, that is, the complete exhaust and small-displacement exhaust effect can be obtained.

As shown in fig. 1, a guide seat 53 is arranged at the first air hole 51, a first sealing element 4 capable of ascending and descending is arranged on the guide seat 53, the first sealing element 4 is used for sealing the first air hole 51, a floating ball 2 is connected to one end of the first sealing element 4 far away from the guide seat 53, and the first sealing element 4 is controlled to move by the ascending and descending of the floating ball 2, so that the first air hole 51 is opened and closed.

Moreover, on the basis of the above structure, as shown in fig. 1, the floating ball 2 is circumferentially provided with the second sealing member 3, the second sealing member 3 is used for sealing the second air hole 6, and the second sealing member 3 also moves up and down along with the floating ball 2, but when the first sealing member 4 completely seals the first air hole 51, the second sealing member 3 does not seal the second air hole 6, but needs the floating ball 2 to float upwards continuously, so that the floating ball 2 can reach the sealing position finally, that is, the state of the floating ball 2 can be switched by virtue of the liquid level difference, and thus a plurality of exhaust rates can be obtained.

As shown in fig. 1-3, the exhaust valve includes at least three states, which are:

in the normal state shown in fig. 1, the first sealing member 4 is away from the first air hole 51, and the second sealing member 3 is away from the second air hole; at this time, the exhaust speed is fastest, and the height of the floating ball 2 is lower, namely, the liquid in the cavity 12 is less.

In the primary sealing state shown in fig. 2, the floating ball 2 is not completely immersed in the liquid, the first sealing element 4 seals the first air hole 51, and the second sealing element 3 is far away from the second air hole 6; at this time, the first air hole 51 is sealed, so that the exhaust speed is influenced, but the second air hole 6 is still opened, so that the exhaust process can still be continuously completed, but the liquid level is higher, the gas is less, and the higher exhaust speed is not needed.

In the secondary sealing state shown in fig. 3, the floating ball 2 is immersed in the liquid, the first sealing member 4 seals the first air hole 51, and the second sealing member 3 seals the second air hole 6. At this time, since the liquid permeates the floating ball 2, the liquid level is extremely high, at this time, air exhaust is not needed, and the liquid is prevented from flowing out from the air exhaust valve, therefore, a completely sealed state is needed, the process is switched from a primary sealed state to a primary sealed state, the speed is high, and the liquid flowing out through the second air hole 6 does not directly splash out of the device when passing through the communication hole 54, but exists at the first air hole 51, and after the first air hole 51 is opened, the liquid can flow into the cavity 12, and even if the liquid discharging from the air exhaust valve exists, the liquid amount is very small.

Further, as shown in fig. 1, a cover plate 56 is disposed at one end of the fixing portion 55 away from the main valve body 1, the cover plate 56 is disposed larger than the first air hole 51, and the upper surface of the fixing portion 55 is an inclined surface, so that external liquid can be prevented from flowing into the cavity through the first air hole 51.

On the basis of the above structure, as shown in fig. 1, the floating ball 2 is provided with a sinking chamber 21, a return spring 22 is arranged in the sinking chamber 21, and the length of the return spring 22 is smaller than the depth of the sinking chamber 21, so that the fixed point is prevented from separating from the sinking chamber 21 for limitation, thereby causing the floating ball 2 to shake and affecting the use effect, furthermore, one end of the return spring 22 is connected and fixed with the floating ball 2, and the other end is fixed with the first sealing element 4, the first sealing element 4 comprises a sealing plug 42, the sealing plug 42 is penetrated by a guide rod 41, the guide rod 41 penetrates through the guide seat 53 and can move at the guide seat 53, one end of the guide rod 41, which is far away from the guide seat 53, is fixed with the return spring 22, and since the guide rod 41 moves up and down in the vertical direction, the floating ball 2 can only move up and down in the vertical direction, thereby avoiding the floating ball from displacing and causing the device failure.

And, as a necessary condition, when the second sealing member 3 seals the second air hole 6, the return spring 22 is compressed. It is ensured that the second air hole 6 of the device can be quickly changed from the sealing state to the opening state after the liquid level is reduced.

The specific structure of the second sealing element 3 is, as shown in the figure, the second sealing element 3 includes a cylindrical sleeve 31, the cylindrical sleeve 31 is sleeved on the outer side of the floating ball 2 and is fixed with the floating ball 2, an annular sealing strip 32 is arranged at one end of the cylindrical sleeve 31 far away from the floating ball 2, and the annular sealing strip 32 is used for sealing the second air hole 6.

Further, the sinking chamber 21 is located at the center line of the first air hole 51, and the maximum diameter length of the cylindrical sleeve 31 is smaller than the minimum diameter length of the valve port 13. Ensuring that the entire structure can be disengaged from the valve port 11, i.e. enabling the device to be disassembled.

In addition to the above structure, the apparatus can be provided with the following structure:

as shown in the figure, the main valve body 1 is circumferentially provided with a plurality of return pipes 14, each return pipe 14 includes a first opening 141 and a second opening 143, each return pipe 14 is a bent pipe, a plane of a bent pipe vertex 142 of each return pipe 14 is higher than a plane of the corresponding second opening 143, and a plane of the corresponding second opening 143 is higher than a plane of the corresponding first opening 141.

Further, the plane of the communicating hole 54 is higher than the plane of the elbow vertex 142, the plane of the second opening 143 is higher than the plane of the bottom surface of the spoiler 52, and the plane of the bottom surface of the spoiler 52 is higher than the plane of the first opening 141. When the first air hole 51 is sealed, the liquid in the device can only flow to the second air hole 6, and at this time, the existence of the second opening 143 can reduce the flow rate of the water flow reaching the position, thereby obtaining a buffering effect, and to a certain extent, can reduce the liquid amount of the liquid flowing out from the second air hole 6 of the exhaust valve.

Moreover, on the basis of the above structure, the flow disturbing portion 52 is provided with an arc-shaped groove at a position corresponding to the second opening 143, so that water flow in the second opening 143 can be blocked, the water flow is prevented from impacting the sealing plug 42 and the floating ball 2 to affect the sealing effect of the device, and in the impacting process, the water flow can be disturbed, and the water flow is prevented from directly flowing out from the second opening 143 without any influence.

Furthermore, in order to improve the effect of the above structure, the cross-sectional area of the cavity 12 of the main valve body 1 in the plane of the first opening 141 is larger than the cross-sectional area of the cavity 12 of the main valve body 1 in the plane of the second opening 143.

Finally, the cylindrical sleeve 31 is circumferentially provided with a plurality of vertical waist-shaped holes, so that the cylindrical sleeve 31 is prevented from being directly impacted by water flow, and further the cylindrical sleeve is prevented from shaking to influence the sealing effect.

Claims

1. A water supply pipeline exhaust valve is characterized by comprising a main valve body (1) and a sealing seat (5), wherein the main valve body (1) comprises a throttling opening (11) and a circular valve port (13), the sealing seat (5) is arranged at the valve port (13) and fixed with the main valve body (1), the sealing seat (5) comprises a fixing part (55) and a turbulent flow part (52), the fixing part (55) is circumferentially fixed with the main valve body (1), the turbulent flow part (52) is positioned at one side, close to a cavity (12) of the main valve body (1), of the fixing part (55), a gap exists between the turbulent flow part (52) and the main valve body (1), the annular gap forms a second air hole (6), a first air hole (51) is further formed in the center of the sealing seat (5) along the axial direction of the center, a plurality of communication holes (54) are circumferentially arranged at the position, close to the fixing part (55), of the turbulent flow part (52), the communication holes (54) are communicated with the first air hole (51) and the second air hole (6), a guide seat (51) is arranged at the position, a first air hole (53) is used for guiding seat (4), and a sealing piece (4) is connected with the first air hole (4), floater (2) circumference is provided with second sealing member (3), second sealing member (3) are used for sealing second gas pocket (6), just discharge valve includes three kinds of states at least, is respectively:

in a normal state, the first sealing element (4) is far away from the first air hole (51), and the second sealing element (3) is far away from the second air hole (6);

a primary sealing state, wherein the floating ball (2) is not completely immersed in liquid, the first sealing element (4) seals the first air hole (51), and the second sealing element (3) is far away from the second air hole (6);

and in a secondary sealing state, the floating ball (2) is immersed in the liquid, the first sealing element (4) seals the first air hole (51), and the second sealing element (3) seals the second air hole (6).

2. A water supply pipe exhaust valve according to claim 1, characterized in that a plurality of return pipes (14) are circumferentially arranged on the main valve body (1), a first opening (141) and a second opening (143) are arranged at the contact position of the return pipes (14) and the main valve body (1), the return pipes (14) are bent pipes, the plane of the bent pipe vertex (142) of the return pipes (14) is higher than the plane of the second opening (143), and the plane of the second opening (143) is higher than the plane of the first opening (141).

3. The exhaust valve for the water supply pipeline as claimed in claim 2, wherein the plane of the communicating hole (54) is higher than the plane of the vertex (142) of the elbow, the plane of the second opening (143) is higher than the plane of the bottom surface of the turbulent flow part (52), and the plane of the bottom surface of the turbulent flow part (52) is higher than the plane of the first opening (141).

4. A feed-water duct outlet valve according to claim 3, characterised in that the spoiler portion (52) is provided with an arc-shaped groove at a position opposite to the second opening (143).

5. The water supply pipeline exhaust valve according to claim 1, characterized in that the floating ball (2) is provided with a sinking chamber (21), a return spring (22) is arranged in the sinking chamber (21), one end of the return spring (22) is fixedly connected with the floating ball (2), the other end of the return spring is fixedly connected with the first sealing element (4), and when the second sealing element (3) seals the second air hole (6), the return spring (22) is in a compressed state.

6. The water supply pipeline exhaust valve according to claim 5, characterized in that the second sealing element (3) comprises a cylindrical sleeve (31), the cylindrical sleeve (31) is sleeved outside the floating ball (2) and fixed with the floating ball (2), an annular sealing strip (32) is arranged at one end of the cylindrical sleeve (31) far away from the floating ball (2), and the annular sealing strip (32) is used for sealing the second air hole (6).

7. A water supply pipe exhaust valve according to claim 6, characterized in that the sinking chamber (21) is located at the center line of the first air hole (6), and the maximum diameter length of the cylindrical sleeve (31) is smaller than the minimum diameter length of the valve port (13).

8. A feed-water pipe outlet valve according to claim 3, characterised in that the cross-sectional area of the chamber (12) of the main valve body (1) in the plane of the first opening (141) is larger than the cross-sectional area of the chamber (12) of the main valve body (1) in the plane of the second opening (142).

9. A feed water pipe exhaust valve according to claim 6, characterized in that the cylindrical sleeve (31) is circumferentially provided with a plurality of vertical kidney-shaped holes.

10. A water supply pipe exhaust valve according to claim 1, characterized in that the end of the fixing part (55) far away from the main valve body (1) is provided with a cover plate (56), the cover plate (56) is larger than the first air hole (51), and the upper surface of the fixing part (55) is a slope.